[PATCH v1 5/7] apalis-imx8: add implementation for board_mem_get_layout

Igor Opaniuk
2020-10-22T08:21:41Z

From: Igor Opaniuk <igor.opaniuk@toradex.com>

Add implementation of board_mem_get_layout for overriding the memory
layout.

Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
---

board/toradex/apalis-imx8/apalis-imx8.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/board/toradex/apalis-imx8/apalis-imx8.c b/board/toradex/apalis-imx8/apalis-imx8.c
index 9263b0f51f..2ed66261d2 100644
--- a/board/toradex/apalis-imx8/apalis-imx8.c
+++ b/board/toradex/apalis-imx8/apalis-imx8.c
@@ -37,6 +37,29 @@ static void setup_iomux_uart(void)
imx8_iomux_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}

+void board_mem_get_layout(u64 *phys_sdram_1_start,
+ u64 *phys_sdram_1_size,
+ u64 *phys_sdram_2_start,
+ u64 *phys_sdram_2_size)
+{
+ u32 is_quadplus = 0, val = 0;
+ sc_err_t scierr = sc_misc_otp_fuse_read(-1, 6, &val);
+
+ if (scierr == SC_ERR_NONE) {
+ /* QP has one A72 core disabled */
+ is_quadplus = ((val >> 4) & 0x3) != 0x0;
+ }
+
+ *phys_sdram_1_start = PHYS_SDRAM_1;
+ *phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
+ *phys_sdram_2_start = PHYS_SDRAM_2;
+ if (is_quadplus)
+ /* Our QP based SKUs only have 2 GB RAM (PHYS_SDRAM_1_SIZE) */
+ *phys_sdram_2_size = 0x0UL;
+ else
+ *phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
+}
+
int board_early_init_f(void)
{
sc_pm_clock_rate_t rate = SC_80MHZ;
--
2.17.1