From: James Doublesin <doublesin@ti.com>
Date: Mon, 22 Dec 2014 22:26:10 +0000 (-0600)
Subject: arm: am437x: PLL values for all input frequencies
X-Git-Tag: v2015.04-rc1~81^2~11
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=e2a6207bcc45d9d8f3c2da75d581f3efb4d7e47f;p=oweals%2Fu-boot.git

arm: am437x: PLL values for all input frequencies

Need to provide PLL values for all possible input frequencies (19.2, 24,
25, 26MHz). Values provide are also optimized for jitter (needed
especially for PER PLL and DDR PLL).

Signed-off-by: James Doublesin <doublesin@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
---

diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index a1c3c17fed..8695fc1790 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -81,12 +81,12 @@ static int read_eeprom(struct am43xx_board_id *header)
 
 const struct dpll_params dpll_mpu[NUM_CRYSTAL_FREQ][NUM_OPPS] = {
 	{	/* 19.2 MHz */
-		{-1, -1, -1, -1, -1, -1, -1},	/* OPP 50 */
+		{125, 3, 2, -1, -1, -1, -1},	/* OPP 50 */
 		{-1, -1, -1, -1, -1, -1, -1},	/* OPP RESERVED	*/
-		{-1, -1, -1, -1, -1, -1, -1},	/* OPP 100 */
-		{-1, -1, -1, -1, -1, -1, -1},	/* OPP 120 */
-		{-1, -1, -1, -1, -1, -1, -1},	/* OPP TB */
-		{-1, -1, -1, -1, -1, -1, -1}	/* OPP NT */
+		{125, 3, 1, -1, -1, -1, -1},	/* OPP 100 */
+		{150, 3, 1, -1, -1, -1, -1},	/* OPP 120 */
+		{125, 2, 1, -1, -1, -1, -1},	/* OPP TB */
+		{625, 11, 1, -1, -1, -1, -1}	/* OPP NT */
 	},
 	{	/* 24 MHz */
 		{300, 23, 1, -1, -1, -1, -1},	/* OPP 50 */
@@ -115,24 +115,28 @@ const struct dpll_params dpll_mpu[NUM_CRYSTAL_FREQ][NUM_OPPS] = {
 };
 
 const struct dpll_params dpll_core[NUM_CRYSTAL_FREQ] = {
-		{-1, -1, -1, -1, -1, -1, -1},	/* 19.2 MHz */
+		{625, 11, -1, -1, 10, 8, 4},	/* 19.2 MHz */
 		{1000, 23, -1, -1, 10, 8, 4},	/* 24 MHz */
 		{1000, 24, -1, -1, 10, 8, 4},	/* 25 MHz */
 		{1000, 25, -1, -1, 10, 8, 4}	/* 26 MHz */
 };
 
 const struct dpll_params dpll_per[NUM_CRYSTAL_FREQ] = {
-		{-1, -1, -1, -1, -1, -1, -1},	/* 19.2 MHz */
-		{960, 23, 5, -1, -1, -1, -1},	/* 24 MHz */
-		{960, 24, 5, -1, -1, -1, -1},	/* 25 MHz */
-		{960, 25, 5, -1, -1, -1, -1}	/* 26 MHz */
+		{400, 7, 5, -1, -1, -1, -1},	/* 19.2 MHz */
+		{400, 9, 5, -1, -1, -1, -1},	/* 24 MHz */
+		{32, 0, 8, -1, -1, -1, -1},	/* 25 MHz */
+		{480, 12, 5, -1, -1, -1, -1}	/* 26 MHz */
 };
 
-const struct dpll_params epos_evm_dpll_ddr = {
-		266, 24, 1, -1, 1, -1, -1};
+const struct dpll_params epos_evm_dpll_ddr[NUM_CRYSTAL_FREQ] = {
+		{665, 47, 1, -1, 4, -1, -1}, /*19.2*/
+		{133, 11, 1, -1, 4, -1, -1}, /* 24 MHz */
+		{266, 24, 1, -1, 4, -1, -1}, /* 25 MHz */
+		{133, 12, 1, -1, 4, -1, -1}  /* 26 MHz */
+};
 
 const struct dpll_params gp_evm_dpll_ddr = {
-		400, 23, 1, -1, 1, -1, -1};
+		50, 2, 1, -1, 2, -1, -1};
 
 const struct ctrl_ioregs ioregs_lpddr2 = {
 	.cm0ioctl		= LPDDR2_ADDRCTRL_IOCTRL_VALUE,
@@ -157,7 +161,7 @@ const struct emif_regs emif_regs_lpddr2 = {
 	.emif_rd_wr_lvl_rmp_win		= 0x0,
 	.emif_rd_wr_lvl_rmp_ctl		= 0x0,
 	.emif_rd_wr_lvl_ctl		= 0x0,
-	.emif_ddr_phy_ctlr_1		= 0x0E084006,
+	.emif_ddr_phy_ctlr_1		= 0x0E284006,
 	.emif_rd_wr_exec_thresh		= 0x80000405,
 	.emif_ddr_ext_phy_ctrl_1	= 0x04010040,
 	.emif_ddr_ext_phy_ctrl_2	= 0x00500050,
@@ -201,7 +205,7 @@ const struct ctrl_ioregs ioregs_ddr3 = {
 	.dt1ioctl		= DDR3_DATA0_IOCTRL_VALUE,
 	.dt2ioctrl		= DDR3_DATA0_IOCTRL_VALUE,
 	.dt3ioctrl		= DDR3_DATA0_IOCTRL_VALUE,
-	.emif_sdram_config_ext	= 0x0143,
+	.emif_sdram_config_ext	= 0xc163,
 };
 
 const struct emif_regs ddr3_emif_regs_400Mhz = {
@@ -434,17 +438,6 @@ void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size)
 	return;
 }
 
-const struct dpll_params *get_dpll_ddr_params(void)
-{
-	if (board_is_eposevm())
-		return &epos_evm_dpll_ddr;
-	else if (board_is_gpevm() || board_is_sk())
-		return &gp_evm_dpll_ddr;
-
-	printf(" Board '%s' not supported\n", am43xx_board_name);
-	return NULL;
-}
-
 /*
  * get_sys_clk_index : returns the index of the sys_clk read from
  *			ctrl status register. This value is either
@@ -464,6 +457,20 @@ static u32 get_sys_clk_index(void)
 			CTRL_SYSBOOT_15_14_SHIFT);
 }
 
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+	int ind = get_sys_clk_index();
+
+	if (board_is_eposevm())
+		return &epos_evm_dpll_ddr[ind];
+	else if (board_is_gpevm() || board_is_sk())
+		return &gp_evm_dpll_ddr;
+
+	printf(" Board '%s' not supported\n", am43xx_board_name);
+	return NULL;
+}
+
+
 /*
  * get_opp_offset:
  * Returns the index for safest OPP of the device to boot.